Question
A research study was conducted to examine the differences between older and younger adults on perceived life satisfaction. A pilot study was conducted to examine
A research study was conducted to examine the differences between older and younger adults on perceived life satisfaction. A pilot study was conducted to examine this hypothesis. Ten older adults (over the age of 70) and ten younger adults (between 20 and 30) were give a life satisfaction test (known to have high reliability and validity). Scores on the measure range from 0 to 60 with high scores indicative of high life satisfaction; low scores indicative of low life satisfaction. The data are presented below. Compute the appropriate t-test.
Older Adults Younger Adults
45 34
38 22
52 15
48 27
25 37
39 41
51 24
46 19
55 26
46 36
BASED ON DATA ABOVE ANSWER THE FOLLOWING BELOW:
- What are the values of the ff.?
- means
- standard deviations
- variance
- What would be the null hypothesis in this study?
- What would be the alternate hypothesis?
- What probability level did you choose and why?
- What were your degrees of freedom?
- Is there a significant difference between the two testing conditions?
- Interpret your answer.
- If you have made an error, would it be a Type I or a Type II error? Explain your answer.
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